Consider the following statements:
When dry saturated or slightly super heated stream expands through a nozzle
1. The coefficient of discharge is greater than unity
2. it is dry upto Wilson’s line.
3. Expansion is isentropic throughout
Which of these statements are correct?
(a) 1, 2 and 3 (b) 1 and 2
(c) 1 and 3 (d) 2 and 3